Device for sharpening saws.



No. 702,50. Patented .Iune I0, 1902. o. E. PEISELER.

DEVICE FOR SHARPENING SAWS.

(Application filed July 20, 1901.)

(No Model.)

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UNITE STATES PATENT OF ICE.

OSKAR EDM. PEISELER, 'OF REM SOH'E I'ID, GERMANY.

DEVICE FOR SHARPENING SAWS.

srnorrrcnrron forming ea of Letters Patent No. 702,150, dated. June 10, 1902.

Application filed July 20,1901. Serial No; 69,163. (No modeld To all whom it may concern-.-

Be it known that I, OSKAR EDMUND PEIS-.

ELER, a subject of the Emperor of Germany, residing at Alte Freiheitstr'asse 5, in'the city of Remscheid, Empire of Germany, have invented a new and useful Improvement in Means for Sharpening Saws, of which'the following is a full, clear, and exact specification.

This invention relates to means for sharpening saw-teeth of an y kind of saws by hand; and it consists in a saw-file without point and tongue, which is turnably secured in a holder, so that any side pressure upon the holder will not injure the'file itself and all the teeth keep their shape.

On the accompanying drawings, Figure 1 2, 3, and 4 are cross-sections.

The instrument consists of a saw-file a and a holder b. The first o'ne'has neither a point nor a tongue, but is cut off at both ends, so

as to form a file of equal section throughout its length. The upper and lower faces of the three-edged file are providedwith three center punches 0, arranged as near as possible to the edge of the file. The holder Z) consists of a bow, in the square ends of which two pointed screws (1 are fixed for the purpose of j ournaling the file in such a manner that it can freely movewith the edge downward. -To prevent its rotation, a projection h is provided on the inner face of the strap; v

As seen from the sectional figures, the file if inserted into the tooth will equally attack the edges of the same. Side pressures will cause only the holderto assume a side movement. The work with such a file may be done by unpracticedlaborers, and the files are considerably cheaper, as the point and tongue are lacking} "The movement of the file may be also prevented by a set-screw g,

projecting through the strap and pressing on the file, as shown.

What I claim, anddesire to secure by Letters Patent, is

A saw-sharpening device consisting of a holder said holder having two oppositely-ab ranged pointed screws and a projection arranged at its inner side'a file adapted to fit between the screws said file being angular and of uniform cross-section, and provided at its ends near each corner with an indentation whereby the file is held eccentrically in its holder for the purpose described.

OSK. EDM. PEISELER. Witnesses:

J. A. RITTERSHAUS, OTTO BENNER. 

